Bump rspec and rspec-rails

- rspec to 3.9.1
- rspec-rails to 4.0.0.beta4

Gemfile

@@ -355,7 +355,7 @@ group :development, :test do
 
   gem 'database_cleaner', '~> 1.7.0'
   gem 'factory_bot_rails', '~> 5.1.0'
-  gem 'rspec-rails', '~> 4.0.0.beta3'
+  gem 'rspec-rails', '~> 4.0.0.beta4'
 
   # Prevent occasions where minitest is not bundled in packaged versions of ruby (see #3826)
   gem 'minitest', '~> 5.11.0'

Gemfile.lock

@@ -894,36 +894,36 @@ GEM
       chunky_png
     rqrcode-rails3 (0.1.7)
       rqrcode (>= 0.4.2)
-    rspec (3.8.0)
-      rspec-core (~> 3.8.0)
-      rspec-expectations (~> 3.8.0)
-      rspec-mocks (~> 3.8.0)
-    rspec-core (3.8.2)
-      rspec-support (~> 3.8.0)
-    rspec-expectations (3.8.4)
+    rspec (3.9.0)
+      rspec-core (~> 3.9.0)
+      rspec-expectations (~> 3.9.0)
+      rspec-mocks (~> 3.9.0)
+    rspec-core (3.9.1)
+      rspec-support (~> 3.9.1)
+    rspec-expectations (3.9.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.8.0)
-    rspec-mocks (3.8.1)
+      rspec-support (~> 3.9.0)
+    rspec-mocks (3.9.1)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.8.0)
+      rspec-support (~> 3.9.0)
     rspec-parameterized (0.4.2)
       binding_ninja (>= 0.2.3)
       parser
       proc_to_ast
       rspec (>= 2.13, < 4)
       unparser
-    rspec-rails (4.0.0.beta3)
+    rspec-rails (4.0.0.beta4)
       actionpack (>= 4.2)
       activesupport (>= 4.2)
       railties (>= 4.2)
-      rspec-core (~> 3.8)
-      rspec-expectations (~> 3.8)
-      rspec-mocks (~> 3.8)
-      rspec-support (~> 3.8)
+      rspec-core (~> 3.9)
+      rspec-expectations (~> 3.9)
+      rspec-mocks (~> 3.9)
+      rspec-support (~> 3.9)
     rspec-retry (0.6.1)
       rspec-core (> 3.3)
     rspec-set (0.1.3)
-    rspec-support (3.8.2)
+    rspec-support (3.9.2)
     rspec_junit_formatter (0.4.1)
       rspec-core (>= 2, < 4, != 2.12.0)
     rspec_profiling (0.0.5)
@@ -1350,7 +1350,7 @@ DEPENDENCIES
   rouge (~> 3.16.0)
   rqrcode-rails3 (~> 0.1.7)
   rspec-parameterized
-  rspec-rails (~> 4.0.0.beta3)
+  rspec-rails (~> 4.0.0.beta4)
   rspec-retry (~> 0.6.1)
   rspec-set (~> 0.1.3)
   rspec_junit_formatter